IDiyas

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9321932 B1

PDFFull Text
Date of Patent:
Apr. 26, 2016

Filed:

Aug. 09, 2012

Latex comprising water and a styrenic block copolymer and a process for preparing articles therefrom

Applicant:

Wouter DE Jong, Almere, NL;

Inventor:

Wouter De Jong, Almere, NL;

Assignee:

Kraton Polymers U.S. LLC, Houston, TX (US);

Attorneys:

Clements Bernard PLLC

Leslie Streeter

Primary Examiner:

Tae H Yoon

Int. Cl.
CPC ...
C09D 109/08 (2006.01); A61K 9/107 (2006.01); A61D 19/00 (2006.01); C09D 109/10 (2006.01); C08K 5/00 (2006.01); C09D 153/02 (2006.01); A61B 19/04 (2006.01); C08F 297/04 (2006.01); C08J 5/02 (2006.01); A61L 29/04 (2006.01); A61L 29/08 (2006.01); A61L 31/04 (2006.01); A61L 31/10 (2006.01); A61F 6/04 (2006.01);
U.S. Cl.
CPC ...
C09D 109/10 (2013.01); A61B 19/04 (2013.01); A61L 29/041 (2013.01); A61L 29/085 (2013.01); A61L 31/048 (2013.01); A61L 31/10 (2013.01); C08F 297/046 (2013.01); C08J 5/02 (2013.01); C08K 5/0025 (2013.01); C09D 153/02 (2013.01); C09D 153/025 (2013.01); A61F 6/04 (2013.01); C08J 2353/02 (2013.01);
Abstract

Articles with enhanced tensile strength and comfort are prepared from a latex comprising water and a styrenic block copolymer, wherein the styrenic block copolymer has 2 or more poly(vinyl aromatic) blocks and at least one block of polymerized conjugated diene, wherein the styrenic block copolymer has a weight average molecular weight of 150,000 to 250,000, the poly(vinyl aromatic) blocks have a weight average molecular weight ranging from 9,000 to 15,000, and the content of poly(vinylaromatic) blocks in the styrenic block copolymer ranges from 8 to 15% wt, based on the total styrenic block copolymer, by a process which comprises coating a surface with the latex to obtain a film, wherein the latex comprises a vulcanizing agent. The invention also provides a latex comprising such a styrenic block copolymer and a vulcanizing agent, as well as a styrenic block copolymer that is particularly suitable for use in such a latex.

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